Verzeichnisstruktur phpBB-3.2.0
- Veröffentlicht
- 06.01.2017
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Node.php
001 <?php
002
003 /*
004 * This file is part of Twig.
005 *
006 * (c) 2009 Fabien Potencier
007 * (c) 2009 Armin Ronacher
008 *
009 * For the full copyright and license information, please view the LICENSE
010 * file that was distributed with this source code.
011 */
012
013 /**
014 * Represents a node in the AST.
015 *
016 * @author Fabien Potencier <fabien@symfony.com>
017 */
018 class Twig_Node implements Twig_NodeInterface
019 {
020 protected $nodes;
021 protected $attributes;
022 protected $lineno;
023 protected $tag;
024
025 /**
026 * Constructor.
027 *
028 * The nodes are automatically made available as properties ($this->node).
029 * The attributes are automatically made available as array items ($this['name']).
030 *
031 * @param array $nodes An array of named nodes
032 * @param array $attributes An array of attributes (should not be nodes)
033 * @param int $lineno The line number
034 * @param string $tag The tag name associated with the Node
035 */
036 public function __construct(array $nodes = array(), array $attributes = array(), $lineno = 0, $tag = null)
037 {
038 $this->nodes = $nodes;
039 $this->attributes = $attributes;
040 $this->lineno = $lineno;
041 $this->tag = $tag;
042 }
043
044 public function __toString()
045 {
046 $attributes = array();
047 foreach ($this->attributes as $name => $value) {
048 $attributes[] = sprintf('%s: %s', $name, str_replace("\n", '', var_export($value, true)));
049 }
050
051 $repr = array(get_class($this).'('.implode(', ', $attributes));
052
053 if (count($this->nodes)) {
054 foreach ($this->nodes as $name => $node) {
055 $len = strlen($name) + 4;
056 $noderepr = array();
057 foreach (explode("\n", (string) $node) as $line) {
058 $noderepr[] = str_repeat(' ', $len).$line;
059 }
060
061 $repr[] = sprintf(' %s: %s', $name, ltrim(implode("\n", $noderepr)));
062 }
063
064 $repr[] = ')';
065 } else {
066 $repr[0] .= ')';
067 }
068
069 return implode("\n", $repr);
070 }
071
072 /**
073 * @deprecated since 1.16.1 (to be removed in 2.0)
074 */
075 public function toXml($asDom = false)
076 {
077 @trigger_error(sprintf('%s is deprecated since version 1.16.1 and will be removed in 2.0.', __METHOD__), E_USER_DEPRECATED);
078
079 $dom = new DOMDocument('1.0', 'UTF-8');
080 $dom->formatOutput = true;
081 $dom->appendChild($xml = $dom->createElement('twig'));
082
083 $xml->appendChild($node = $dom->createElement('node'));
084 $node->setAttribute('class', get_class($this));
085
086 foreach ($this->attributes as $name => $value) {
087 $node->appendChild($attribute = $dom->createElement('attribute'));
088 $attribute->setAttribute('name', $name);
089 $attribute->appendChild($dom->createTextNode($value));
090 }
091
092 foreach ($this->nodes as $name => $n) {
093 if (null === $n) {
094 continue;
095 }
096
097 $child = $n->toXml(true)->getElementsByTagName('node')->item(0);
098 $child = $dom->importNode($child, true);
099 $child->setAttribute('name', $name);
100
101 $node->appendChild($child);
102 }
103
104 return $asDom ? $dom : $dom->saveXML();
105 }
106
107 public function compile(Twig_Compiler $compiler)
108 {
109 foreach ($this->nodes as $node) {
110 $node->compile($compiler);
111 }
112 }
113
114 public function getLine()
115 {
116 return $this->lineno;
117 }
118
119 public function getNodeTag()
120 {
121 return $this->tag;
122 }
123
124 /**
125 * Returns true if the attribute is defined.
126 *
127 * @param string $name The attribute name
128 *
129 * @return bool true if the attribute is defined, false otherwise
130 */
131 public function hasAttribute($name)
132 {
133 return array_key_exists($name, $this->attributes);
134 }
135
136 /**
137 * Gets an attribute value by name.
138 *
139 * @param string $name
140 *
141 * @return mixed
142 */
143 public function getAttribute($name)
144 {
145 if (!array_key_exists($name, $this->attributes)) {
146 throw new LogicException(sprintf('Attribute "%s" does not exist for Node "%s".', $name, get_class($this)));
147 }
148
149 return $this->attributes[$name];
150 }
151
152 /**
153 * Sets an attribute by name to a value.
154 *
155 * @param string $name
156 * @param mixed $value
157 */
158 public function setAttribute($name, $value)
159 {
160 $this->attributes[$name] = $value;
161 }
162
163 /**
164 * Removes an attribute by name.
165 *
166 * @param string $name
167 */
168 public function removeAttribute($name)
169 {
170 unset($this->attributes[$name]);
171 }
172
173 /**
174 * Returns true if the node with the given name exists.
175 *
176 * @param string $name
177 *
178 * @return bool
179 */
180 public function hasNode($name)
181 {
182 return array_key_exists($name, $this->nodes);
183 }
184
185 /**
186 * Gets a node by name.
187 *
188 * @param string $name
189 *
190 * @return Twig_Node
191 */
192 public function getNode($name)
193 {
194 if (!array_key_exists($name, $this->nodes)) {
195 throw new LogicException(sprintf('Node "%s" does not exist for Node "%s".', $name, get_class($this)));
196 }
197
198 return $this->nodes[$name];
199 }
200
201 /**
202 * Sets a node.
203 *
204 * @param string $name
205 * @param Twig_Node $node
206 */
207 public function setNode($name, $node = null)
208 {
209 $this->nodes[$name] = $node;
210 }
211
212 /**
213 * Removes a node by name.
214 *
215 * @param string $name
216 */
217 public function removeNode($name)
218 {
219 unset($this->nodes[$name]);
220 }
221
222 public function count()
223 {
224 return count($this->nodes);
225 }
226
227 public function getIterator()
228 {
229 return new ArrayIterator($this->nodes);
230 }
231 }
232